CN106443181A - Radio frequency simulation signal environment monitoring system and method based on antenna radiativity - Google Patents
Radio frequency simulation signal environment monitoring system and method based on antenna radiativity Download PDFInfo
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- CN106443181A CN106443181A CN201610797454.5A CN201610797454A CN106443181A CN 106443181 A CN106443181 A CN 106443181A CN 201610797454 A CN201610797454 A CN 201610797454A CN 106443181 A CN106443181 A CN 106443181A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to the technical field of signal environment monitoring, and discloses a radio frequency simulation signal environment monitoring system and method based on antenna radiativity. The monitoring system used by the method comprises a bracket, a combined horn antenna, a spectrum analyzer, a control computer and a microwave darkroom. The combined horn antenna is arranged on the bracket of an attached platform in the microwave darkroom. The combined horn antenna is connected with a power amplifier through a radio frequency cable. The power amplifier is connected with the spectrum analyzer through a signal line. The spectrum analyzer is connected with the control computer through a network cable. The system and method have the advantages of simple structure, easy realization, convenient use, high stability and good maintainability, and can be widely used in the fields of communication countermeasure simulation experiments and the like.
Description
Technical field
The present invention relates to signal environment monitoring technical field, provides a kind of radio frequency simulation hoop based on aerial radiation
Border monitoring system and method, can be that the signal environment monitoring of detecting devices l-G simulation test process provides a kind of effective technology handss
Section, the system composition simple structure, it is easy to accomplish, and easy to use, stability height, maintainable good；Also it is applied to logical
The fields such as letter confronting simulation test.
Background technology
Radar detection equipment internal field Hardware-in-loop Simulation Experimentation is so that its expense is low, efficiency high, favorable repeatability the advantages of, at which
More application is obtained in Performance Testing evaluation test.Internal field Hardware-in-loop Simulation Experimentation passes through to build complicated electricity in microwave dark room
Magnetic signal environment is examining the indices of tested radar detection equipment, and whether institute's analog electromagnetic signal is accurately directly connected to examination
Test science and the credibility of result.Accordingly, it would be desirable to supervise in carrying out demarcation before test in process of the test to electromagnetic signal, testing
The work such as survey and confirm after testing.
The information such as the frequency of radiofrequency signal, amplitude at the major concern aerial array centre of sphere in l-G simulation test, the position is for putting
Put the region of tested device.By setting up measurement apparatus, signal can be carried out demarcating and true at the centre of sphere before test and after test
Recognize, but in process of the test, tested device needed all the time at the aerial array centre of sphere, if set up monitoring device will affect tested
Equipment is normally received to signal.
It is, in microwave dark room, signal receiving device, Ke Yishi are constituted by electromagnetic horn and audiofrequency spectrometer etc. in prior art
The now monitoring to spatial electromagnetic frequency spectrum, but due to being limited by tested equipment placement location, electromagnetic horn can not be arranged on antenna
At the array centre of sphere, it is impossible to obtain signal amplitude information at the centre of sphere.
Directly also can achieve to signal in microwave dark room as electromagnetic signal monitoring device using another set of detection equipment
Measurement, detection equipment can carry out sorting identification to signal, be obtained in that more signal parameter information.But, detection equipment
Purchase cost height, and volume is larger, inconvenience is positioned in the microwave dark room of limited space.
Content of the invention
For solving the technical problem of background technology appearance, it is an object of the present invention to provide a kind of penetrating based on aerial radiation
Frequency emulates signal environment monitoring system and method, is the technology that a kind of position beyond the centre of sphere carries out signal monitoring, is radar
Detection equipment internal field Hardware-in-loop Simulation Experimentation provides a kind of new signal monitoring means.
For achieving the above object, the present invention is adopted the following technical scheme that：
A kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics, including：Support, combination loudspeaker day
Line, spectrum analyzer, control computer, microwave dark room, are provided with combination loudspeaker on the support of microwave dark room auxiliary platform
Antenna, combination electromagnetic horn is connected with power amplifier by RF cable, and power amplifier is divided with frequency spectrum by holding wire
Analyzer is connected, and spectrum analyzer is connected with control computer by netting twine.
A kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics, the spectrum analyzer is
Agilent company N9030A audiofrequency spectrometer frequency range is 10MHz～26.5GHz, Accuracy of Power Measurement ± 0.19dB.
A kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics, the combination electromagnetic horn is by 3
The broad beam electromagnetic horn mouth of 1GHz～18GHz faces out combination and constitutes, and each loudspeaker axis is pointed to and is separated by 120 °, electromagnetic horn tail
Portion is fixed by connector, and connector center reserving installation hole, so as to by electromagnetic horn combination by the installing hole profit
It is screwed to cradle top；The zero-bit of any of which loudspeaker unit axis directional antenna array, is fixed on during installation attached
At the position A of platform, and keep stationary state.
A kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics, the support is added using wood materials
Work, support height exceedes the height of absorbing material in darkroom；Frame bottom disk leaves location hole, by support by attached during use
The steady pin of category platform is positioned.
A kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics, the power amplifier is adopted
Agilent company 83017A power amplifier, frequency range 0.5GHz～26.5GHz, peak power output 20dBm, gain
30dB.
A kind of radio frequency simulation signal environment monitoring method based on antenna radiation characteristics, using antenna radiation characteristics and space
Position relationship, using the spectrum analyzer of computer controls the signal environment in microwave dark room is carried out Real-time Collection, record and
Process, its step is as follows：
1), before equipment is marched into the arena, according to tested armament-related work frequency, radio frequency is injected in aerial array feed path input
Signal, by standard antenna on the turntable at the centre of sphere, using the signal power size of audiofrequency spectrometer measurement standard antenna reception,
Input radio frequency signal is gradually increased, until 1dB compression point P is measured at the centre of sphere-1dB；Maximum work at the centre of sphere is calculated using following formula
Rate density；
Wherein, L is the line loss for connecting audiofrequency spectrometer and standard horn radio-frequency cable；λ is operation wavelength；G increases for standard antenna
Benefit；
2) while, the signal reference power that the signal monitoring system at the P of adjunct platform position that is installed on records the frequency is big
Little, test is carried out according to antenna radiation characteristics, and now the signal magnitude of monitoring system registers is close corresponding to peak power at the centre of sphere
Degree, sets up signal power reference value file, and its form is such as：Sequence number：1、2、3……；Frequency f1、f2、f3……；Power at the centre of sphere
P1、P2、P3……；P point power P1'、P2'、P3'……；
During test, tested equipment has been laid at the aerial array centre of sphere, now, it is only necessary to by the signal monitoring on adjunct platform
System carries out test record to testing frequency power, and compares with the front signal power reference value that sets up of test, by difference
Programmable attenuator in passage is fed by aerial array to be modified, consistent in whole process of the test so as to ensure that power
Property；
Concrete component capabilities：
A. support is processed using the wood materials that can avoid radiofrequency signal reflections affect l-G simulation test, should highly be exceeded dark
The height of indoor absorbing material, bottom disc leaves location hole, and it is fixed during use to carry out support by the steady pin of adjunct platform
Position；
B. combination electromagnetic horn faces out combination installation by the broad beam electromagnetic horn mouth of 3 1GHz～18GHz and obtains, respectively
Loudspeaker axis is pointed to and is separated by 120 °, and electromagnetic horn afterbody is fixed by connector, and connector center reserving installation hole, with
Just electromagnetic horn combination is fixed to cradle top by the installing hole using screw；
C. power amplifier adopt Agilent company 83017A power amplifier, frequency range 0.5GHz～26.5GHz,
Peak power output 20dBm, gain 30dB；
D. spectrum analyzer adopts Agilent company N9030A spectrum analyzer, frequency range 10MHz～26.5GHz, work(
Rate certainty of measurement ± 0.19dB；
E. the interface relationship that signal monitoring system constitutes, 1 source electromagnetic horn combination of sequence number and output target power amplifier
Interface standard SMA, 2 source power amplifier of sequence number and output target spectrum instrument interface standard SMA, 3 source audiofrequency spectrometer of sequence number with
The interface standard Ethernet of output target control computer.
A kind of radio frequency simulation signal environment monitoring method based on antenna radiation characteristics, described to the letter in microwave dark room
The signal environment that number environment is carried out in Real-time Collection microwave dark room include frequency 1GHz～18GHz, power -70dBmW～
20dBmW scope, signal monitoring system can realize 360 ° of range signals frequency spectrums, the isoparametric real-time monitoring of power and record.
Due to adopting technical scheme as above, the present invention has the advantages that：
A kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics of the present invention and method, can be detection
The signal environment monitoring of device emulation process of the test provides a kind of effective technological means, may be implemented in using antenna radiation characteristics
Position beyond the aerial array centre of sphere is realized the real-time monitoring to the multi-signal parameter such as radio frequency signal frequency, amplitude and is counted automatically
According to process, tested equipment in process of the test is not affected to normally receive signal.While the simple structure of monitoring system composition, body
Product is less, it is easy to accomplish, easy to use；And system stability height, maintainable good；And can also be applied to communication countermeasure
The fields such as l-G simulation test.
Description of the drawings
Fig. 1 signal monitoring system constitutes connection diagram；
Fig. 2 signal monitoring system layout schematic diagram；
Fig. 3 signal power monitors schematic diagram；
Fig. 4 stent size schematic diagram；
Fig. 5 electromagnetic horn combines scheme of installation.
Specific embodiment
As shown in Fig. 1,2,3,4,5, a kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics, bag
Include：Support, combination electromagnetic horn, spectrum analyzer, control computer, microwave dark room, positioned at microwave dark room auxiliary platform
Combination electromagnetic horn is provided with support, and combination electromagnetic horn is connected with power amplifier by RF cable, power amplifier
It is connected with spectrum analyzer by holding wire, spectrum analyzer is connected with control computer by netting twine.
The present invention breaks through traditional conventional thinking, using antenna radiation characteristics principle and spatial relation, by will be many
The microwave device of kind of difference in functionality carries out ingenious combination, realizes in radio frequency simulation test the real-time monitoring of signal parameter at the centre of sphere
Scheme.Through practice, can be multiple in the range of -70dBmW～20dBmW in 1GHz～18GHz, power to frequency by this programme
The complicated electromagnetic signal of Modulation Types combination is monitored and records.
Signal monitoring system proposed by the present invention includes support, electromagnetic horn combination, audiofrequency spectrometer, control computer and company
Wiring cable constitutes, and its connection diagram, schematic layout pattern are as depicted in figs. 1 and 2.Wherein, support is used for setting up electromagnetic horn, loudspeaker
The zero-bit of any of which loudspeaker unit axis directional antenna array of antenna combination, is fixed on the position of adjunct platform during installation
At A, and hold mode is constant；Control computer is realized to the program control of audiofrequency spectrometer by netting twine, and Monitoring Data is acquired
Analysis.
Signal monitoring system of the present invention can achieve 360 ° of range signals frequency spectrums, the isoparametric real-time monitoring of power and note
Record.Wherein, as follows to the monitoring principle of power at the centre of sphere：
Before equipment is marched into the arena, in aerial array feed path input according to tested armament-related work frequency injection radio frequency letter
Number, standard antenna is arranged on the turntable at the centre of sphere, the signal power size for being received using audiofrequency spectrometer measurement standard antenna, by
Gradually input radio frequency signal is increased, until measuring 1dB compression point P at the centre of sphere-1dB.Peak power at the centre of sphere is calculated using following formula
Density.
Wherein, L is the line loss for connecting audiofrequency spectrometer and standard horn radio-frequency cable；
λ is operation wavelength；
G is standard antenna gain.
Meanwhile, the signal monitoring system at the P of adjunct platform position that is installed on records the signal reference power size of the frequency,
Test schematic diagram is as shown in Figure 3.According to antenna radiation characteristics principle, now the signal magnitude of monitoring system registers is corresponding to the centre of sphere
Place's maximum power density, sets up signal power reference value file, and its form is as shown in table 1.During test, at the aerial array centre of sphere
Tested equipment is laid, now, it is only necessary to which test record is carried out to testing frequency power by the signal monitoring system on adjunct platform,
And compare with the front signal power reference value that sets up of test, difference is fed programmable attenuator in passage by aerial array
It is modified, so as to ensure that concordance of the power in whole process of the test.
1 signal monitoring log of table
Each several part design is realized
(1) support, for avoiding radiofrequency signal reflections affect l-G simulation test, support is processed using wood materials, should highly be surpassed
Cross the height of absorbing material in darkroom.Bottom disc leaves location hole, during use enters support by the steady pin of adjunct platform
Row positioning.Concrete size is as shown in Figure 4.
(2) electromagnetic horn combination, faces out combination installation by the broad beam electromagnetic horn mouth of 3 1GHz～18GHz and obtains,
Each loudspeaker axis is pointed to and is separated by 120 °, and electromagnetic horn afterbody is fixed by connector, and connector center reserving installation hole,
So as to electromagnetic horn combination is fixed to cradle top by the installing hole using screw, its scheme of installation is as shown in Figure 5.
(3) power amplifier, using Agilent company 83017A power amplifier, frequency range 0.5GHz～
26.5GHz, peak power output 20dBm, gain 30dB.
(4) spectrum analyzer, using Agilent company N9030A spectrum analyzer, frequency range 10MHz～26.5GHz,
Accuracy of Power Measurement ± 0.19dB.
Interface scheme, in system, the interface relationship of each several part is as shown in table 2.
2 signal monitoring system components interface relationship of table
Claims (7)
1. a kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics, is characterized in that：Including：Support, combination
Electromagnetic horn, spectrum analyzer, control computer, microwave dark room, are provided with the support of microwave dark room auxiliary platform
Combination electromagnetic horn, combination electromagnetic horn be connected with power amplifier by RF cable, power amplifier pass through holding wire and
Spectrum analyzer is connected, and spectrum analyzer is connected with control computer by netting twine.
2. a kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics according to claim 1, which is special
Levying is：It is 10MHz～26.5GHz that the spectrum analyzer is Agilent company N9030A audiofrequency spectrometer frequency range, power measurement
Precision ± 0.19dB.
3. a kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics according to claim 1, which is special
Levying is：The combination electromagnetic horn faces out combination by the broad beam electromagnetic horn mouth of 3 1GHz～18GHz and constitutes, each loudspeaker
Axis is pointed to and is separated by 120 °, and electromagnetic horn afterbody is fixed by connector, and connector center reserving installation hole, so that will
Electromagnetic horn combination is fixed to cradle top by the installing hole using screw；Any of which loudspeaker unit axis directional antenna battle array
The zero-bit of row, is fixed on during installation at the position A of adjunct platform, and keeps stationary state.
4. a kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics according to claim 1, which is special
Levying is：The support is processed using wood materials, and support height exceedes the height of absorbing material in darkroom；Frame bottom disk is stayed
There is location hole, during use, support is positioned by the steady pin of adjunct platform.
5. a kind of radio frequency simulation signal environment monitoring system based on antenna radiation characteristics according to claim 1, which is special
Levying is：The power amplifier adopt Agilent company 83017A power amplifier, frequency range 0.5GHz～26.5GHz, most
Big output 20dBm, gain 30dB.
6. a kind of radio frequency simulation signal environment monitoring method based on antenna radiation characteristics, is characterized in that：Using aerial radiation spy
Property and spatial relation, are adopted to the signal environment in microwave dark room in real time by the spectrum analyzer of computer controls
Collection, record and process, its step is as follows：
1), before equipment is marched into the arena, according to tested armament-related work frequency, radiofrequency signal is injected in aerial array feed path input,
Standard antenna is arranged on the turntable at the centre of sphere, the signal power size for being received using audiofrequency spectrometer measurement standard antenna, gradually
Input radio frequency signal is increased, until 1dB compression point P is measured at the centre of sphere-1dB；Peak power at the centre of sphere is calculated using following formula close
Degree；
Wherein, L is the line loss for connecting audiofrequency spectrometer and standard horn radio-frequency cable；λ is operation wavelength；G is standard antenna gain；
2) while, the signal monitoring system at the P of adjunct platform position that is installed on records the signal reference power size of the frequency,
Test is carried out according to antenna radiation characteristics, and now the signal magnitude of monitoring system registers corresponds to maximum power density at the centre of sphere,
Signal power reference value file is set up, its form is such as：Sequence number：1、2、3……；Frequency f1、f2、f3……；Power P at the centre of sphere1、
P2、P3……；P point power P1'、P2'、P3'……；
During test, tested equipment has been laid at the aerial array centre of sphere, now, it is only necessary to by the signal monitoring system on adjunct platform
Test record is carried out to testing frequency power, and compare with the front signal power reference value that sets up of test, difference is passed through
In aerial array feed passage, programmable attenuator is modified, so as to ensure that concordance of the power in whole process of the test；
Concrete component capabilities：
A. support is processed using the wood materials that can avoid radiofrequency signal reflections affect l-G simulation test, should highly be exceeded in darkroom
The height of absorbing material, bottom disc leaves location hole, during use positions support by the steady pin of adjunct platform；
B. combination electromagnetic horn faces out combination installation by the broad beam electromagnetic horn mouth of 3 1GHz～18GHz and obtains, each loudspeaker
Axis is pointed to and is separated by 120 °, and electromagnetic horn afterbody is fixed by connector, and connector center reserving installation hole, so that will
Electromagnetic horn combination is fixed to cradle top by the installing hole using screw；
C. power amplifier adopts Agilent company 83017A power amplifier, frequency range 0.5GHz～26.5GHz, maximum
Output 20dBm, gain 30dB；
D. spectrum analyzer adopts Agilent company N9030A spectrum analyzer, frequency range 10MHz～26.5GHz, power survey
Accuracy of measurement ± 0.19dB；
E. the interface relationship that signal monitoring system constitutes, 1 source electromagnetic horn of sequence number is combined and exports connecing for target power amplifier
Mouth standard SMA, interface standard SMA of 2 source power amplifier of sequence number and output target spectrum instrument, 3 source audiofrequency spectrometer of sequence number and output
The interface standard Ethernet of target control computer.
7. a kind of radio frequency simulation signal environment monitoring method based on antenna radiation characteristics according to claim 6, which is special
Levying is：The described signal environment carried out in Real-time Collection microwave dark room by the signal environment in microwave dark room includes that frequency exists
1GHz～18GHz, power are in -70dBmW～20dBmW scope, and signal monitoring system can realize 360 ° of range signals frequency spectrums, work(
The isoparametric real-time monitoring of rate and record.
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| CN107505503A (en) * | 2017-08-07 | 2017-12-22 | 北京无线电测量研究所 | A kind of radio wave loss measuring system and method |
| CN109150242A (en) * | 2018-08-24 | 2019-01-04 | 北京小米移动软件有限公司 | Test the method and device of line loss |
| CN110672932A (en) * | 2019-11-14 | 2020-01-10 | 中国电子科技集团公司第五十四研究所 | Automatic calibration method for multi-antenna navigation darkroom test signal level |
| CN112730993A (en) * | 2020-12-17 | 2021-04-30 | 北京建筑大学 | Electromagnetic environment monitoring system |
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